HT672A Holtek Semiconductor Inc., HT672A Datasheet
HT672A
Related parts for HT672A
HT672A Summary of contents
Page 1
... Applications Interactive toys Security system General Description The HT672A transponder IC with 13.56MHz RF carrier, which provides a low cost battery less tran- sponder solution when combined with an external in- ductor. The inductor and internal capacitor form an LC tank which induce voltage from the radiated 13.56MHz carrier signal generated from the reader antenna ...
Page 2
... Rev. 1.10 Pad Assignment Chip size: 925 * The IC substrate should be connected to VSS in the PCB layout artwork. Y Pad No. X 357.34 4 228.70 5 219.80 361.99 6 88.89 378.15 Description Storage Temperature ........................... 125 C Operating Temperature .............................. +0. HT672A 2 1040 ( m) Unit 361.37 338.59 332.15 May 17, 2007 ...
Page 3
... 2 The HT672A has a built-in internal Voltage Limiter to prevent excess power supply and RF levels induced by the LC tank from damaging the device or causing the device to function abnormally. A total of 96 bits of OTP memory space is provided, from which 64 bits wide are customer programmable, which can be programmed using the specified programmer supplied by Holtek ...
Page 4
... Application Circuits Tag A tag consists of a PCB (or Mylar film) with printed coil, HT672A and a housing. The housing can be of various shapes. Note: The value of the antenna inductance however the optimum value will be changed slightly due to the variation of the internal resonance capacitor (10pF typically) during process. ...
Page 5
... Solution (I) 1-chip Solution (II) Rev. 1.10 5 HT672A May 17, 2007 ...
Page 6
... RFID Reader Rev. 1.10 6 HT672A May 17, 2007 ...
Page 7
... Package Information 8-pin DIP (300mil) Outline Dimensions Symbol Rev. 1.10 Dimensions in mil Min. Nom. 355 240 125 125 16 50 100 295 335 0 7 HT672A Max. 375 260 135 145 20 70 315 375 15 May 17, 2007 ...
Page 8
... Holtek s products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. Rev. 1.10 8 HT672A May 17, 2007 ...